It sounds to be the tren. Andromix can be a great, all in one oil, but my main frustration comes from not being able to adjust the individual steroids in the stack, since they are all together. For this reason, I think that first time tren users are much better off getting all three compounds in seperate vials. Then after you know how it effects you, andromix can be a great blend. For now, the only way you can reduce the tren, is to reduce all 3 drugs. And that is what I would suggest you do.
I find that anxiety/nervousness from tren tends to be most dramatic, as you are getting used to the drug. I've found that if I back the dose off, I can let myself get used to a lighter dose, then add more later. You didn't say how much andromix you are using, but I would start by cutting your dose in half. If you are using 2cc EOD, cut it down to 1cc and see how you do with that. Tren is known for side effects like this, so you are probably not going to be able to get away with no sides in this cycle, but with less, you may find that you can more easliy tollerate how it's making you feel. Over a couple of wks, you may find that the anxiety becomes less. If you feel that you can handle more, try upping the dose a little at that point. Add in .25cc per shot and see how you do over the next wk.
And yes, for now, I might consider leaving out the clen. It sounds like you are new to clen, and since you don't know how it effects you, I'd want to eliminate the chance of it causing a similar side effect (which it can do).
Another option would be to get some vials of prop and masteron. You can add some of them to each shot, so that you are able to still get your full dose of test and masteron, while reducing the tren. Then, over time, if you increase the andromix, you can reduce the amount of extra prop and masteron that you add to the shot.
Best of luck bro. Hope you can get some sleep on this cycle ;)